Heat Treating 52100 Steel for the ToolMakers Flat Part 1

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=e6o23betLjM

In which we start heat treatment on the first prototype of the ToolMakers Flat. 52100 steel is quite old, stable, and interesting. It's a chromium steel alloy, and is used in ball bearings and gage blocks. We, of course, are interested in the latter. • See the PFG.Live series for our live discussions about the ToolMakers Flat. • Of Clock Springs And Toolmakers Flats: https://youtube.com/live/7WQMzInZrNA • Info on the TIG rod that was used: • https://certilas.com/en/product/nicro... • https://www.americanspecialmetals.com... • Many thanks to Robin Renzetti ‪@ROBRENZ‬ for his favorite groove dimensions and kibbitzing about lapping. • Thanks to Dale Bannister (IG: WidgetWorksMfg) ‪@TheWidgetWorks‬ for the gift of nickel-alloy TIG wire. • Thanks to Dr. Larrin Thomas ‪@KnifeSteelNerds‬ for the data in his book and web site and his continuing nerdosity. • Thanks to the NIST (formerly the NBS) ‪@NIST‬ for both data and motivation. • Thanks to my kiddo Jared for his excellent camera work. • Part 2 is here: • Heat Treating 52100 Steel for the Too... • References: • Knife Steel Nerds: How to heat-treat 52100 https://knifesteelnerds.com/2019/05/1... • NIST paper: https://nvlpubs.nist.gov/nistpubs/jre... • ** WARNING: Do NOT attempt to use liquid nitrogen without adequate training and safety equipment. It should never be stored in a sealed container (it will explode). It should never be used in an enclosed, un-ventilated space because it may displace oxygen and cause hypoxia (lack of oxygen potentially leading to death). It should never be transported in the passenger compartment of a vehicle. Do NOT attempt to use liquid nitrogen without adequate training and safety equipment. ** • • Links for products/designs mentioned are at pfg.gg/links • Follow me on Instagram at spencer_webb_nh . • ( PFG Stones® is a registered trademark of Kinetic Precision)

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